Why do you get pimples all over your body when summer comes?

Go to the hospital for examination; it may be cholinergic urticaria, which is a type of "urticaria" that people often call. When exposed to heat, mental stress, ingestion of hot food or drinks, or in After exercise, the body temperature increases slightly, and the heated blood flow stimulates the brain's temperature regulation center, excites cholinergic nerves and releases acetylcholine. If you are allergic to this chemical, allergic reactions may occur.

This type of reaction may occur. In addition to no rash, only acupuncture and severe itching, allergic reactions can also cause red "wheels" of about 2 mm to appear on the skin of the trunk and proximal limbs (except axilla, palms and soles). This kind of wheal is a rapid It comes and goes without leaving any trace. Mild cholinergic urticaria can occur in ordinary people during adolescence. The symptoms usually subside after stopping exercise or calming down, so it is not easy to attract attention. The whole process can last for several months or several years. Those with frequent attacks should go to a dermatologist for treatment in time. The condition can be alleviated or relieved with antihistamine and anti-acetylcholine medication.

Treatment

Find out the cause and remove the causative factors. , is the method to cure the disease. However, the cause of urticaria, especially the cause of chronic urticaria, is often difficult to find, so in most cases, symptomatic treatment should be used to reduce various triggers. Factors, especially in the case of physical urticaria, should also be taken to avoid various factors that aggravate the dilation of skin blood vessels.

1. Antihistamines: mainly H1 receptor antagonists and H2 receptors. The antihistamine effects of various antihistamine drugs are different from each other in degree, and their other pharmacological effects are also different from each other; for example, cyproheptadine is effective for cold urticaria, and cyproheptadine is effective for thermal urticaria. Antara has a significant effect, and H1 and H2 receptor antagonists can be combined with intractable urticaria to improve the effect.

2. Adrenocortical hormone: For acute, severe or stubborn cases, such as allergies. Shock, serum sickness urticaria, pressure urticaria, etc. can be treated with hydrocortisone 100~200MG added to 5% glucose solution for intravenous infusion, or prednisone 30~40MG taken orally. This therapy is generally not suitable for long-term use.

3. Antibiotics: Appropriate antibiotics can be used for cases caused by infection, especially for urticaria caused by obvious or latent infection of the gastrointestinal tract.

4. Reduce the permeability of blood vessel walls. Drugs: such as vitamin C, vitamin P, calcium, often used together with antihistamines

5. Sympathomimetic drugs: mainly used for severe acute urticaria, especially allergic ones. In case of shock or laryngeal edema, 0.5 to 1 ml of 0.1% epinephrine should be injected subcutaneously. In severe cases, another injection can be given every 20 to 30 minutes.

6. Histamine globulin: It promotes the production of anti-histamine in the body. Amine antibody drugs are more effective for chronic urticaria, especially for mechanical and cold urticaria. Intramuscular injection of 2 to 4 ml each time, 1 to 2 times a week, 6 to 8 times is a course of treatment.

7. Others: You can choose oral vitamin K, vitamin E, vitamin B12, aminophylline, reserpine, chloroquine, etc., aprotinin, 6-aminoglycan, sodium thiosulfate intravenously, cardiac and tissue therapy , autohemotherapy, etc.